PrecompileTests
===
## PrecompileTests
```diff
+ bn256Add.json OK
+ bn256mul.json OK
+ ecrecover.json OK
+ identity.json OK
- modexp.json Fail
+ pairing.json OK
+ ripemd160.json OK
+ sha256.json OK
```
OK: 7/8 Fail: 1/8 Skip: 0/8